I-use-about-a-gal.sour-grain-to-start-then-when-it-slows-a-quart-gets-um-goin-again

Just keep you two 5 gallon buckets of soured milo on a rotational basis. You don't need a lot just put out in places where cats frequently hang out. Standing timber. Brush piles and drop offs. Get some dip bait down in those places Before you set out the stink! You should give yourself at least 30 min. After you have put out the soured grain to fish it. As said before. Drop 2-3 big scoops in likely areas that are fairly close together and come back to the first spot and fish it in about 20 min.as that will be the time it'll take to set up the other two spots. By the time you get anchored out, get u a cup of coffee. Bait up 2-3 poles with dip bait, cut shad, weiners, whatever you choose the catfish should cooperate. I like range cubes too but the carp will find the and go to town with em. You'll still catch some cats off of range cubes. If you range cubes it then do it the night before and then come back and dump your grain in the same spot(s).

30-gal-black-trash-can-works-great.Ive-kept-a-55gal.-plastic-drum-of-sour-grain-for-many-years

Opus is talking about something close to my experience too. I haven't found a source for milo here in the metroplex (I'll take suggestions for milo). So, I use scratch grain (has a lot of milo in it). When I soured small batches, the remaining scratch grain attracted and bred rice weevils (yaa, more protein). So, if you get a bag of scratch grain (my experience), sour the whole bag at once and be done with it.